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Int J Mol Sci


Title:Functional Characterization of a (E)-beta-Ocimene Synthase Gene Contributing to the Defense against Spodoptera litura
Author(s):Han T; Shao Y; Gao R; Gao J; Jiang Y; Yang Y; Wang Y; Yang S; Gao X; Wang L; Li Y;
Address:"Key Laboratory of Molecular Epigenetics of MOE, Northeast Normal University, Changchun 130024, China. College of Plant Science, Jilin University, Changchun 130024, China. Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China"
Journal Title:Int J Mol Sci
Year:2023
Volume:20230413
Issue:8
Page Number: -
DOI: 10.3390/ijms24087182
ISSN/ISBN:1422-0067 (Electronic) 1422-0067 (Linking)
Abstract:"Soybean is a worldwide crop that offers valuable proteins, fatty acids, and phytonutrients to humans but is always damaged by insect pests or pathogens. Plants have captured sophisticated defense mechanisms in resisting the attack of insects and pathogens. How to protect soybean in an environment- or human-friendly way or how to develop plant-based pest control is a hotpot. Herbivore-induced plant volatiles that are released by multiple plant species have been assessed in multi-systems against various insects, of which (E)-beta-ocimene has been reported to show anti-insect function in a variety of plants, including soybean. However, the responsible gene in soybean is unknown, and its mechanism of synthesis and anti-insect properties lacks comprehensive assessment. In this study, (E)-beta-ocimene was confirmed to be induced by Spodoptera litura treatment. A plastidic localized monoterpene synthase gene, designated as GmOCS, was identified to be responsible for the biosynthesis of (E)-beta-ocimene through genome-wide gene family screening and in vitro and in vivo assays. Results from transgenic soybean and tobacco confirmed that (E)-beta-ocimene catalyzed by GmOCS had pivotal roles in repelling a S. litura attack. This study advances the understanding of (E)-beta-ocimene synthesis and its function in crops, as well as provides a good candidate for further anti-insect soybean improvement"
Keywords:Animals Humans Spodoptera/genetics/metabolism Acyclic Monoterpenes *Alkenes/metabolism *Insecta/metabolism Plants/metabolism (E)-beta-ocimene anti-insects soybean volatile terpenes;
Notes:"MedlineHan, Taotao Shao, Yan Gao, Ruifang Gao, Jinshan Jiang, Yu Yang, Yue Wang, Yanan Yang, Siqi Gao, Xiang Wang, Li Li, Yueqing eng 31972445, 32272751/National Natural Science Foundation of China/ 20220508112RC, 20210101005JC/Department of Science and Technology of Jilin Province/ 202006625007/China Scholarship Council/ Switzerland 2023/04/28 Int J Mol Sci. 2023 Apr 13; 24(8):7182. doi: 10.3390/ijms24087182"

 
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